lan-atm switching centillion - mtmnetmtmnet.com/pdf_files/centillionatmspeeddatasheet.pdf ·...

Delivering unparalleled availability, functionality and scalability to campusLANs and enterprise networking environments, Centillion* ATMSpeed*Swith Modules also deliver high-performance metropolitan and wide area network access.

Ideal for deployment across the enterprise,the Centillion 50, Centillion 100, andSystem 5000BH LAN-ATM Switchesprovide a unified, consistent solution that offers resilient, mission-critical performance, and eliminates the need toconstantly redesign growing networks.

ATMSpeed Switch Modules are a family ofhigh-performance ATM media modulesthat enable the flexible interconnection ofCentillion 50/100 and System 5000BHLAN-ATM Switches with the Centillion

1000 family of Multiservice ATMSwitches, via multiple high-speed, full duplex ATM links. Together with Centillion Switching Software,ATMSpeed modules offer powerful ATM connectivity solutions that are very rich in functionality, highly resilientand highly scalable.

Data Sheet

Ethernet and Token RingLAN-ATM Integration

Mission-Critical Network Availability

Network ApplicationIntelligence

Plug-and-Play ATM

ComprehensiveInvestment Protection

Certified Year 2000Compliant

LAN-ATM SwitchingCentillion

ATMSpeed Switch Modules

For the Centillion 50/100 switches,ATMSpeed modules are also available in six configurations:

• ATMSpeed MDA MCP Module, with32 MB DRAM, preloaded AdvancedCentillion Switching Software, andslots for two 2-port MDAs

• ATMSpeed MDA MCP Module, with16 MB DRAM, no preloaded software,and slots for two 2-port MDAs

• ATMSpeed MDA Switch Module, with slots for two 2-port MDAs

• ATMSpeed 622 Mbps MCP Module,with one multimode fiber port

• ATMSpeed 622 Mbps MCP Module,with one single-mode fiber port

• ATMSpeed 622 Mbps Switch Module,with one multimode fiber port.

Master Control ProcessorAll modules are generically referred to as ATMSpeed modules.

Modules without an MCP designation do not have Master Control Processor(MCP) capability.

At least one MCP module, loaded withthe appropriate version of CentillionSwitching Software, must be present in achassis for Centillion LAN-ATM Switchactivation. MCP modules provide ATMPrivate Network Node Interface (PNNI)call signaling and routing, switched andpermanent Virtual Channel Connections(VCCs), LAN Emulation (LANE) services,

Centillion ATMSpeed Switch Modules Data Sheet2

For the System 5000BH switches,ATMSpeed modules are available in sixconfigurations:

• Model 5720M ATM MDA MCPModule, with 32 MB DRAM, pre-loaded Advanced Centillion SwitchingSoftware and slots for two 2-portMDAs (Media Dependent Adapters)

• Model 5720M ATM MDA MCPModule, with 16 MB DRAM, no preloaded software and slots for two 2-port MDAs

• Model 5720 ATM MDA Switch Module, with slots for two 2-port MDAs

• Model 57622M-MM ATM MCPModule, with one 622 Mbps multimode fiber port

• Model 57622M-SM ATM MCPModule, with one 622 Mbps single-mode fiber port

• Model 57622-MM ATM SwitchModule, with one 622 Mbps multimode fiber port.

Multi-Protocol Over ATM (MPOA) services, RFC 1483 Multi-ProtocolEncapsulation over ATM AAL-5 services,and network control and management ona switch-wide basis, while also providingATM switching capabilities. Dual MCPmodules can be installed to increase overall switch resiliency.

Switch modules with no MCP designation have no MCP capabilities,and simply provide lower-cost deviceswitch connectivity.

Each of the Models 5720, 5720M,ATMSpeed MDA MCP and ATMSpeedMDA Switch Modules (except the 622Mbps modules) provides two slots forflexible, mix-and-match installation of up to two 2-port MDAs, with totalswitching bandwidth of 1.4 million cellsper second. These modules deliver achoice of simultaneous full-duplex 155Mbps OC-3c, DS3, or E3 connectivityon all ports at full line rates.

Centillion ATMSpeed Switch Modules Data Sheet 3

Media Dependent AdaptersMDAs are available in the following fivetypes and are identical for installation inboth the Centillion 50/100 and System5000BH switches:

• 2-port 155 Mbps SONET/SDH MMF MDA

• 2-port 155 Mbps SONET/SDH SMFMDA

• 2-port 155 Mbps SONET/SDH UTP(Unshielded Twisted Pair) MDA

• 2-port 45 Mbps DS3 WAN MDA

• 2-port 34 Mbps E3 WAN MDA.

ATM Campus SolutionEach 622 Mbps SONET/SDH OC-12ATM module provides one fixed port for multimode or single-mode fiber connectivity between switches in enterprise

networking environments. The multimodefiber (MMF) modules facilitate high-bandwidth intra-campus links betweenCentillion LAN-ATM Switches and otherATM switches. The single-mode fiber(SMF) modules provide equivalent connectivity over longer-range campus-to-campus links. These modules alsodeliver total switching bandwidth of 1.4 million cells per second. They do not have slots for MDAs.

The Centillion 50/100 and System5000BH can be connected to metropolitanand wide area networks using DS3, E3and SONET/SDH OC-3 Mbps MDAs,or SONET/SDH OC-12 modules.VLANs can be extended across theMAN/WAN using RFC 1483 permanentvirtual connections. Traffic shaping can beconfigured for each module and shapingenabled for each port to ensure that trafficrates do not exceed subscribed facilityrates. Traffic shaping is also available forMAN and WAN interconnection via theNortel Networks Model 5782 CentillionMultiprotocol Engine, the BN*(Backbone Node*) router’s ATM RoutingEngine, or via Centillion 1000Multiservice ATM Switches.

ATMSpeed Switch Modules are a critical component of the overall Nortel NetworksATM strategy. A standards-compliantsolution, all modules interoperate withthe Centillion 1000 Multiservice ATMSwitches, BN routers, and with all otherstandards-compliant ATM devices.ATMSpeed modules may be used to construct multihomed, multigigabitbackbones that maximize informationavailability, bandwidth, and scalability,while also providing high-speed connectivity to servers and ATM virtualnetwork routers. Switch interconnectionis simplified using standards-based PrivateNetwork Node Interface (PNNI) dynamictopology services.

When used in conjunction withEtherSpeed* and TokenSpeed* switchingmodules as a high-speed extension of the Centillion LAN-ATM backplane,ATMSpeed modules scale Ethernet, Fast Ethernet, and Token Ring port density, and provide switching performanceand system reliability that is unmatchedin the industry. Centillion LAN-ATMSwitches also support standards-basedLayer 3 network application acceleration,with clients using distributed Multi-Protocolover ATM (MPOA) services. ATMSpeedmodules ensure the smooth integration of desktop media environments into high-availability, high-performanceswitched ATM enterprise networks.

Benefits

Superior Performance and ScalabilityWhether used for backbone connectivityor for supporting high-performanceservers and power desktops, ATMSpeedmodules improve overall network performance and application responsetimes. Each ATMSpeed module deliverslocal cell switching at 1.4 million cells per second, and supplies connectivity to the internal backplane fabric (dual 3.2Gbps backplanes in the System 5000BHswitch, and a single 3.2 Gbps backplanein the Centillion 50/100 switches).

Unlike competing solutions with proprietary backplanes, traffic flows across the Centillion ATM backplane tothe ATMSpeed ports without repeatedprotocol translation or reformatting overhead. Each intermediate link adds a fixed-switch latency of only 10microseconds, minimizing end-to-endnetwork delay, and delay variation, toprovide consistent performance, even as the network expands.

As a totality, Centillion hardware andsoftware creates a solution that scalesseamlessly to provide the performanceand guaranteed availability to the largestand most critical ATM enterprise networks,and is capable of supporting architecturesof 200 or more switches and upwards of10,000 user connections.

Network ApplicationIntelligenceWith the explosion of network applications,dramatically increasing volumes of IP traffic are traversing overburdenedrouters. Every router along the path mustprocess the same packet, and this type ofhop-by-hop processing causes the networktraffic to experience delay and jitter.

Centillion LAN-ATM Switches provide a standards-based solution to router bottlenecks through implementation ofthe ATM Forum’s MPOA specification.MPOA allows direct forwarding of inter-subnet traffic between ATM edgeswitches, bypassing overloaded routersand dramatically improving the intranet’soverall IP performance of the network.

Offloading the IP data forwarding functionto ATM edge switches frees routers toprocess other protocols, including IPX,DECnet, and AppleTalk, relieving theLayer 3 traffic congestion for legacy applications. MPOA is fully backwardcompatible, and can be deployed in anyexisting LANE-based network. In essence,MPOA transforms an ATM network,with all its ATM-attached routers andedge switches, into a single distributedrouter, with each destination a maximumof one hop away (see Figure 1).


Centillion 50/100LAN-ATM Switch

Centillion 5000BHLAN-ATM Switch

System 5000BHLAN-ATM Switch with Multi-Protocol Engine

Physical ConnectionLogical ConnectionVirtual Connection

With MPOA:• Direct communication between end-systems• Intervening routers are bypassed• Higher frame forwarding performance• Only 1 VCC required between end-systems

InterveningRouters

MPOA Server

BN Router withATM Routing Engine

MPOA ServerMPOA Client

MPOA ClientEnd Station- A

End Station- B

ELAN_1Subnet 1

MPOA ShortcutData Direct VCC

Intervening ELANs and

Subnets

ELAN_2Subnet 2

Figure 1: Centillion MPOA Layer 3 Switching.

Centillion LAN-ATM Switches also provide ATM Quality of Service (QoS)support for mission-critical and delay-sensitive applications such as voice over IP, videoconferencing, and video-on-demand. High priority traffic,such as CBR, rt-VBR and nrt-VBR ATMcells, are assigned to the high-priorityqueue, thus ensuring that they are forwarded without delay. ATM UNI and PNNI signaling are also forwardedvia the high-priority queue. All other traffic is forwarded as UBR traffic.

Mission-Critical Network AvailabilityNetworks constructed with CentillionLAN-ATM Switches deliver highly available and resilient networks that areunique in the industry. To connect wiringcloset clients to network center servers,Centillion LAN-ATM Switches can useNNI riser links that deliver multihomed,load-sharing and resilient bandwidthfrom 310 Mbps to 2.4 Gbps. Link and

switch failures are rapidly detected, andmission-critical traffic can be rapidlyrerouted using Interim InterSwitchSignaling Protocol (IISP) link groups, orvia PNNI dynamics onto alternate paths.PNNI can be implemented from the edgeto the core of the network — a capabilityoffered only by Nortel Networks — delivering vastly improved end-to-endnetwork availability.

Instead of traditional Permanent VirtualConnections (PVCs), soft PVCs may beused to increase resiliency. Soft PVCs arereestablished automatically over alternatepaths if an existing path fails. Soft PVCsalso provide scalability as they need only be configured at the ingress switch,without configuration at each intermediateswitch in the network.

Centillion LAN-ATM Switches providedistributed and co-operating LANE services to guarantee LAN Emulationclient (LEC) connectivity, resiliency and performance. Centillion SwitchingSoftware also boosts overall system availability by supporting dual, redundantATMSpeed MCP modules with fastfailover in a single chassis. All ports on the secondary ATMSpeed MCP are fullyfunctional, maximizing the utility of allchassis slots.

Ethernet and Token Ring LAN-ATM IntegrationAdding the powerful capabilities of cell-switched Centillion solutions to existing Ethernet and Token Ring LANsdramatically enhances network performance. The distributed switchingcapabilities of the EtherSpeed andTokenSpeed modules, combined with the extensive ATM switching fabricoffered by the Centillion LAN-ATMSwitches, eliminate the data bottlenecksand bandwidth contention typical of legacy networking systems.


Together, ATMSpeed Switch Modulesand Centillion Switching Software deliver the industry’s most comprehensive LANE implementation. Centillion LANE provides straightforward and highly interoperable connectivity betweenLAN-attached desktops, file servers, and routers, and high-performance ATM networks. Ethernet and Token Ring LANE clients, and fault-tolerant, co-operating LANE services, are supportedwith minimal management intervention.

Plug-and-Play ATMPNNI enables ATM networks to dynamically and automatically negotiateand configure system-wide topologies,and eliminates the need to manually configure the paths between ATM switches. In large enterprise networks,PNNI simplifies deployment andenhances system performance and reliability. Augmenting the labor-intensiveIISP approach with high-performancePNNI greatly reduces the day-to-day burden on the administrators of large networks. Centillion PNNI is unique inthe ability to be implemented through the

entire network, from the wiring closetedge to the network core. Mixed PNNI,soft PVCs and IISP environments are alsosupported, providing additional networkdesign flexibility.

Network management is simplified inCentillion ATM environments throughOptivity*, the industry-leading management solution from NortelNetworks. A key component of OptivityEnterprise,* the Optivity NETarchitect*application features system-level ATMmanagement and provides an intuitive,object-oriented interface to simplifydetailed management tasks.

Features such as rules-based configuration,automatic addressing, and the ability toedit configurations of groups of switchesdramatically reduce the time required to manage the network. In addition, by automating sophisticated switch configuration and image file managementtasks, the administration of ATM networks is optimized, and any potentialfor error is greatly reduced.

Comprehensive Investment ProtectionATMSpeed Switch Modules reduce overall equipment costs in Centillion environments by allowing mix-and-matchconnectivity of multiple media types onthe same module. Network managers can configure the modules with any combination of 2-port unshielded twistedpair, multimode fiber, single-mode fiber,

DS3, or E3 media dependent adapters,eliminating the need to replace hardware asthe network topology evolves. By fullyleveraging the ATM capabilities of eachswitch, ATMSpeed modules deliver high-speed connectivity at a fraction of the costof other ATM edge switches.

In medium- to large-sized networks,Centillion LAN-ATM Switches can bedirectly interconnected via ATMSpeedmodules, lowering total equipment costsby eliminating the need for separate ATMswitches at the core of the network.Investments in existing LAN systems areleveraged by the Centillion architecture’sunparalleled ability to integrate frame-based Ethernet, Token Ring, and cell-switched ATM technologies in a single, high-performance platform.

As networks grow, and powerfulCentillion 1000 Multiservice ATMSwitches are deployed at the networkcore, existing Centillion LAN-ATMSwitches are readily redeployed to wiringclosets or frame-based server farms. TheCentillion solution’s incremental integra-tion strategy facilitates the deployment ofpowerful ATM technology with minimaldisruption, eliminating costly and time-consuming network redesigns.


ApplicationsCentillion LAN-ATM Switches offer asingle, consistent architecture across allfacets of the network. This unifiedapproach ensures maximum network

availability, minimal network training,maximum efficiency, and interoperabilityacross the full range of ATM applications.

The size of the network governs bothswitch selection and switch deployment.In medium- to large-sized networks, the Centillion 100 and System 5000BHswitches are ideal for network centerinstallations. In the largest enterpriseenvironments, these switches can be usedfor high-density wiring closet installations,with high-speed riser connections toCentillion 1000 Multiservice ATMSwitches located in the network center.And in networks of all sizes, the Centillion 50 switch is ideal for deploymentin lower-density wiring closets or workgroupenvironments (See Figure 2).

Enterprise Network Center ApplicationsThe Centillion 100 and System 5000BHswitches are both well suited for deploymentin medium-to-large network centers and

wiring closets. When equipped withATMSpeed modules, both platforms are ideally suited for deployment in networking environments where multipleswitches can be interconnected via PNNIand/or IISP to build a scalable, high-performance backbone network. Single-mode and multimode fiber, UTP, DS3,


Regional Site

Branch Office

Remote Office

Large Campus Site

ATM WAN

WAN

Centillion 100LAN-ATM Switch


Centillion 1200ATM Switch


ARN/ASN Router



Centillion 1600

ATM Switch

System 5000BHLAN-ATM Switch

Server FarmOptivity Policy Services

& Management

Accelar 8000Enterprise Switch

Accelar 1000Routing Switch Meridian PBX

Meridian PBX

BN Router

BayStack 450Ethernet Switch



Figure 2: Centillion 50/100 and System 5000BH LAN-ATM Campus Solution.

and E3 connectivity is supported for maximum flexibility, enabling switches to be installed in network centers or otherlocations across the campus backbone.

Existing networking environments can be smoothly integrated into the ATMenvironment. As additional bandwidth,wide area, and voice demands increase,the Centillion 1000 family ofMultiservice ATM Switches provides ascalable path for expanded ATM networkcenter services.

Wiring Closet ApplicationsA fully-configured Centillion 100 orSystem 5000BH LAN-ATM Switch supports extremely high 10/100 Ethernetand Token Ring switching densities (up to 240 ports per chassis), offering an exceptional concentration of largeworkgroup and desktop populations.Centillion 50 workgroup switches arereadily deployed in smaller closets. Thefull benefits of switching at the workgroupare realized in environments where high-capacity connections to the backbone arerequired to access corporate resources. Asshown in Figure 2, Centillion technologydelivers multiple load-balancing ATMlinks, providing an integrated solution for switched Ethernet or Token Ring connectivity with fast-failover NNI (network-to-network interface) links tothe ATM backbone. PNNI is implementedfrom the edge to the network core, toautomatically determine the optimal pathbetween switches, and the Centillionsolution provides for accelerated Layer 3performance via a straight-forward andcost effective software migration to MPOA.

Centillion switching can be configured tosupport single or multiple, cooperating,fault-tolerant instances of LANE services,including LAN Emulation ConfigurationServer (LECS), LAN Emulation Server(LES), and Broadcast and UnknownServer (BUS).

MAN and WAN ApplicationsFor metropolitan or wide area connectivity,a Centillion LAN-ATM Switch can havean ATMSpeed module with DS3, E3, or SONET/SDH OC-3 MDAs, or anATMSpeed module with a SONET/SDHOC-12 port installed. This allows connectivity over the MAN/WAN at rates ranging from 34 Mbps to 622 Mbps.Traffic shaping per ATMSpeed module issupported, allowing a shaping rate to beconfigured for a given module, and a portto be enabled or disabled to enforce theconfigured rate. Each port enabled fortraffic shaping will ensure that the traffictransmitted over the MAN/WAN doesnot exceed subscribed facility rates.Connectivity over public data networkscan also be achieved using the NortelNetworks Model 5782 MultiprotocolEngine (MPE) installed in a System5000BH switch, or using the BN router’s ATM Routing Engine module. In both latter cases, traffic shaping is also available.



Figure 3: Centillion PNNI Scalability.

Alternatively, deployment of Centillion1200 Multiservice ATM Switches integrates regional and branch office environments into corporate ATM privatenetworks via public carrier services. This capability enables organizations toconsolidate traditionally separate voice,video, and data traffic onto a commonnetwork infrastructure, dramatically lowering the cost of WAN connectivity.

With support for RFC 1483 Multi-Protocol Encapsulation over ATM AAL-5, PVCs can now be used to establishconnectivity over the MAN/WAN for theincreasing number of Internet subscribers,telecommuters and small office/homeoffice power users. Internet ServiceProviders (ISPs) can now deploy NortelNetworks DSL-based 1-Meg Modems for its subscribers, and RFC 1483 at itsPoints of Presence (POPs), to providehigh-speed access up to 1.28 Mbps overexisting telephone lines to web serversites. RFC 1483 support also enables theextension of corporate LANs across theMAN/WAN via Point-to-Point Bridging,and cost-effective communicationbetween VLANs across the MAN/WANvia VC Bridging.

PNNIPeer

Group

Large Campus Site


Centillion 1600

ATM Switch

System 5000BHLAN-ATM Switch

Server Farm

Optivity Policy Services& Management

Accelar 8000Enterprise Switch

Accelar 1000Routing Switch Meridian PBX

BN Router

BayStack 450Ethernet Switch



PNNIPeer

Group

PNNIPeer

Group

Figure 4: RFC 1483 Point-to-Point Bridging.

Public ATM MAN/WAN

RFC 1483 PVC

RFC 1483 PVCSite A

Site A

Centillion 100

Centillion 50

Site B

System 5000BH

RFC 1483 vport

RFC 1483 vport

5000BHC 100

VLAN 2VLAN 2

VLAN 1VLAN 1

C 50 RFC 1483 vports

RFC1483PVCs

VLAN1Servers

VLAN1Workstations

VLAN2Workstations VLAN2

Servers

Features

Private Network Node Interface (PNNI)PNNI is an ATM call routing and signaling protocol that enables switches inlarge ATM networks to dynamically findoptimum paths when establishing virtualconnections. Building its topology database from information exchangesbetween Centillion LAN-ATM Switches,PNNI eliminates the need to manuallyconfigure and update paths between these switches. PNNI also communicatesmetrics to ensure path selection is optimized according to each application’sQuality of Service (QoS) requirements:bandwidth, latency, burstiness, and jitter.

PNNI supports ATM networks of anysize, scaling from campus deployments to global infrastructures. With support for multi-level Designated Transit List,the Centillion LAN-ATM Switches cannow participate in hierarchical peer group networks. This further enhancesscalability by minimizing the amount ofinformation exchange between peergroups (see Figure 3).

To increase resiliency using alternate routing, the Centillion LAN-ATMSwitches support soft PVCs. Soft PVCsallow a PVC to a target destination to beconfigured at the ingress switch, withoutthe need to configure the PVC at every intermediate switch, thus greatlyincreasing scalability by eliminating thetedium of repetitive configuration. If theexisting path fails, a soft PVC will alsoautomatically reestablish itself over analternate path. Availability is further provided by Centillion LAN-ATMSwitches through exceptionally fast convergence around network outages.

Powerful, DistributedArchitectureCentillion ATMSpeed, EtherSpeed,EtherSpeedII and TokenSpeed modulesare designed and built on a distributed,parallel switching engine that enablesswitch modules of any type to be integrated

into a Centillion 50/100 or System5000BH chassis. Unlike other LANswitches, the Centillion LAN-ATM architecture uses ATM as a common fabric over which both cell and frameswitching can be implemented. Thisinternal ATM switch fabric is transparentto users on frame-switched networks, butits presence greatly simplifies the additionof ATM ports to Ethernet- and TokenRing-based switches. Centillion LAN-ATM Switches provide local switching on a per-card and per-switch basis. When ATMSpeed modules are installed,Centillion switches are able to forwardLAN and ATM traffic locally and, whennecessary, over the ATM backplane.

The ATMSpeed modules’ powerful 1.2Gbps onboard CellManager* switchingengine handles local switching. Trafficflowing from one port to another within a switch module is forwarded locally in native mode by a high-performanceRISC engine, reserving the ATM corebandwidth for cross-module traffic only.In addition, a separate 400 Mbps controlbus ensures that essential ATM signalingmessages do not interfere with data transport. High-capacity parallel switching between the ATM core andpacket processor hardware delivers exceptionally high throughput.


Standards-Based ATM SupportAll ATMSpeed Switch Modules supportthe full complement of ATM Forum standards, including UNI, PNNI, IISP,LANE and MPOA, providing standards-based ATM connectivity in multivendorenvironments. Centillion SwitchingSoftware also supports SVCs, PVCs andRFC 1483 Multi-Protocol Encapsulationover ATM AAL-5, enabling a wide variety of multivendor ATM configurations,including interoperation with routers,servers and switches with ATM interfaces.Centillion LAN-ATM Switches supportboth UNI 3.0 and UNI 3.1 signaling protocols, and translate between the twoversions, allowing connections to anystandards-based ATM switch.

ATMSpeed modules offer several important advantages at the networkedge. Unlike other edge switches that useUNI interfaces, the ATMSpeed modulessupport redundant, load-sharing

ATM links using IISP and/or PNNI,greatly increasing network availability and performance.

ATMSpeed modules also feature the industry’s most comprehensive implementation of the ATM Forum’sLANE specification, providing a standards-based method for connectingLAN-attached file servers, desktops, androuters directly to the ATM network.Both Ethernet and Token Ring LANEclients and redundant LANE services are supported, preserving investments in existing technology, while increasingbandwidth and improving network availability.

Network-Wide Virtual LANsVirtual LAN (VLAN) capabilities arecommon across all Centillion switchingplatforms. The ATMSpeed modules support network-wide VLANs to furtherenable network partitioning and provideintegration between devices. Up to 64VLANs are supported in each Centillionswitch, with each VLAN a broadcastdomain based upon either physical switchport or protocol type. A LAN Emulationclient (LEC) represents each VLAN tofacilitate the creation of network-wideEmulated LANs (ELANs) when LANEservices are enabled in local or remoteCentillion switches.

Management in Switched EnvironmentsThe Centillion LAN-ATM Switches can be configured, monitored, and controlled through the Nortel NetworksOptivity and the SpeedView* management applications.

Optivity provides access to completeactivity information on every segment.When LAN- and ATM-switched networksare combined on the Centillion LAN-ATMplatform, network managers can monitor traffic patterns from almost any perspective, and proactively address networking problems from themanagement console. Based entirely on industry standards such as SNMP,HTTP, AToM MIB (RFC 1695),RMON, and RMON2, Optivity deliversan open solution for monitoring and controlling multivendor enterprise networksfrom a single management station.


Optivity looks at the relationship betweenthe network’s primary building blocks —hubs, switches, routers, and end-stations— to provide a global view of the enter-prise. Featuring design and analysis toolsthat leverage the embedded instrumentationpresent in all Nortel Networks equipment,Optivity provides the optimum solutionfor managing the transition from sharedmedia to a switched network infrastructureand beyond. Optivity supports all popularmanagement platforms, such as TivoliNetView for AIX, HP OpenViewNetwork Node Manager, and SunMicrosystems Solstice Domain Manager.

SpeedView provides network managerswith an easy-to-use, graphical tool to configure and monitor networks of Centillion LAN-ATM Switches.SpeedView can be used to configure ATM signaling, call routing, PVP/PVCs,PNNI, soft PVCs, RFC 1483 PVCs,ATM traffic shaping, MPOA clients,LAN Emulation services including LECS,LES/BUS and LECs, and redundancies. It also provides extensive capabilities to configure system and LAN-relatedfunctions such as VLANs, Spanning TreeGroups, IP Multicast, switching modes,and network management.

In Windows environments, SpeedViewoperates as a standalone application. It is also included with the OptivityCampus* management software. InUNIX environments, SpeedView is now a component of Optivity Enterprise.Both versions deliver rich statistical displays that are complemented by simple,intuitive utilities for configuring switchingparameters, enabling performance to be finely tuned to meet varying network conditions.

Centillion Switching SoftwareATMSpeed MCP modules utilizeCentillion Switching Software to supportnetwork topologies scaling to 200 or moreswitches and thousands of user ports.Centillion Switching Software leads theindustry in facilitating the deployment of highly redundant topologies based onmultihomed, load-sharing risers between

Centillion 50/100 and System 5000BHLAN-ATM Switches, and Centillion1000 Multiservice ATM Switches.

Centillion Switching Software enablescustomers to overlay fully interoperable,port- or protocol-based VLANs withIEEE 802.1Q VLAN Tagging over thephysical network topology, facilitating the creation of logical topologies to meet customers’ Internet or intranetrequirements. In addition, the softwareprovides key system performance andresiliency features, including redundantand load-sharing Multi-Link Trunking,cooperating LECS, LES and BUS services,Internet Group Management Protocol(IGMP) control of multicast traffic,extensive filtering and conversation steering, redundant MCP services, andautomatic external clock failover.

In larger networking environments, where overall scaling, management andapplication intelligence are even greaterconsiderations, the software supports keyATM Forum PNNI, MPOA, RFC 1483encapsulation, ATM traffic shaping, andQoS capabilities. PNNI enables switchesto dynamically determine and maintain a system-wide awareness of the networktopology. In so doing, PNNI eliminatesthe need to manually configure staticroutes, while enhancing network scaling


and resiliency, and providing more efficientbandwidth utilization. QoS supportenables applications to utilize the intelligence of ATM constant bit rate(CBR), variable bit rate (VBR), andunspecified bit rate (UBR) services toguarantee bandwidth availability and prioritization for mission-critical applications and latency-sensitive traffic.

ATMSpeed MCP modules do not includeCentillion Switching Software, whichnormally require a separate purchase.Customers preferring the convenience of ATMSpeed MCP modules, preloadedwith Centillion Switching Software, have that option. Although current releases of Centillion Switching Softwarewill operate smoothly on ATMSpeedMCP modules with 16 MB of DRAM,preloaded ATMSpeed MCP Modules

are fitted with 32 MB of DRAM toensure support for future software functionality enhancements.

Network applications and server centralization are heightening demand for Layer 3 IP bandwidth. CentillionSwitching Software provides MPOAClient (MPC) services to vastly increasethe Layer 3 forwarding capability of existing switching hardware, such as the high-density EtherSpeed and TokenSpeed switching modules. This new feature will enable the

Layer 3 capacity of Centillion networks to scale to millions of packets per second.

Year 2000 ComplianceThe Centillion ATM switch product line,including the System 5000BH LAN-ATMswitch, has been tested and certified by Nortel Networks to be Year 2000-compliant according to the test casesidentified in the Nortel Networks Year 2000 Test Strategy/ Plan (seehttp://www.nortelnetworks.com/corporate/year2000/bay/plan.html). The testing verifies that the products inthis product line function correctly whendealing with dates/times, and date/timerelated data in the following manner:

• The Centillion ATM switches accuratelyprocess date/time data from, into, andbetween the 20th and 21st centuriesand the years 1999 and 2000, includingleap year calculations. Processingincludes (but is not limited to), calculating, comparing, and sequencing functions.

• When used in combination with information technology products fromother vendors, the Centillion ATMswitches accurately process date/timedata to the extent that the other vendor's information technology products (used in combination with theCentillion ATM switches), are capableof exchanging conforming date/timedata with the Centillion ATM switches.

• The Centillion ATM switches do not contain or create any logical or mathematical inconsistency, do not malfunction, and will not cease to function when processingdate/time data.


Technical SpecificationsTable 1: ATMSpeed Switch Modules Technical Specifications

Microprocessors

All ATMSpeed MCP Modules 64 bit MIPS 4700 series processor, 133 MHz

Memory

DRAM (ATMSpeed MDA MCP Module) 16 MB

DRAM (ATMSpeed 622 MCP module and 32 MBpreloaded ATMSpeed MDA MCP module)

Flash (All ATMSpeed MCP modules) 4 MB

Cell buffer pool (All ATMSpeed modules) 16 K cells

Electrical Specifications

Power Consumption 40 W (max w/MDAs)

Thermal Rating 136 Btu/hr. (max w/ MDAs)

Physical Specifications

Centillion 50/100

Dimensions (L) 10.5 in. x (W) 12.5 in. x (H) 1.0 in. [(L) 26.7 cm x (W) 31.7 cm x (H) 2.5 cm]

Weight 2.5 lb. (1.1 kg)

System 5000BH

Dimensions (L) 18.875 in. x (W) 1.188 in. x (H) 11.625 in. [(L) 47.94 cm x (W) 3.01 cm x (H) 29.52 cm]

Weight 4.5 lb (2.04 kg)

Environmental Specifications

Operating Temperature 5° to 40°C (41° to 104°F)

Storage Temperature -25° to 70°C (-13° to 158°F)

Operating Humidity 85% maximum relative humidity, non-condensing

Storage Humidity 95% maximum relative humidity, non-condensing

Operating Altitude 10,000 ft. (3,000 m) max

Free Fall/ Drop ISO 4180-s, NSTA 1A

Vibration IEC 68-2-6/34

Shock/Bump IEC 68-2-27-29


Table 1: ATMSpeed Switch Modules Technical Specifications (continued).

Electromagnetic Emissions

Meets requirements of FCC Part 15, Subpart B, Class A

EN 55 022 (CISPR 22:1985), Class A

VCCI Class 1 ITE

Electromagnetic Susceptibility

Electrostatic Discharge (ESD) EC 801-2, Level 2

Radiated Electromagnetic Field EC 801-2, Level 2

Electrical Fast Transient/Burst EC 801-4, Level 2

Electrical Surge IEC 801-5, Levels 1 and 2

Safety Agency Approvals

Approvals UL listed (UL 1950)

UL/CUL listed (UL 9K66)

TUV licensed (EN 60 950)

Meets UL-94-V1 flammability requirements

ATMSpeed 622 Mbps Module

Industry and Protocol Standards ATM Forum AF-PHY-0046.000, ATM

Forum Technical Committee

622.08 Mbps Physical Layer Specification

Maximum Receive Sensitivity

Multimode fiber Rx saturation -14 dBm

Single-mode fiber Rx saturation -8 dBm

Optical Specifications (Single-mode Fiber)

Wavelength 1310 nm Class 1 Laser

Fiber size Duplex 9/125 micron fiber

Connector type Duplex SC connector

Mean launched power -8 to -15 dBm

Min receive sensitivity -28 dBm

Link budget 13 dB

Run length (max.) 15 km (intermediate reach)



Optical Specifications (Multimode Fiber)

Wavelength 1310 nm LED

Fiber size Duplex 62.5/125 micron fiber

Connector type Duplex SC connector

Mean launched power -20 to -14 dBm

Minimum receive sensitivity -26 dBm

Link budget 6 dB

Run length (max.) 500 meters

2-port 155 Mbps MDA

SONET STS-3c/SDH STM-1 155.52 Mbps NRZ line codeMultimode Fiber 1300 nm LED

Duplex 62.5/125 micron fiber, 500 MHz KM minimum bandwidth(FDDI standard)

Duplex SC connector

Mean Launched Power -20 to -14 dBm

Minimum Receive Sensitivity -30 dBm

Link budget 10 dB

Run length (nominal) 1.24 mile (2 kilometer)

SONET STS-3c/SDH STM-1 155.52 Mbps, NRZ line codeSingle-mode Fiber (Intermediate Reach) 1310 nm Class 1 Laser

Duplex 9/125 micron fiber

Duplex SC connector

Mean Launched Power -15 to -8 dBm

Minimum Receive Sensitivity -28 dBm

Link budget 13 dB

Run length (nominal) 12.4 mile (20 kilometer)

Unshielded Twisted Pair 155.52 Mbps, NRZ line code

Category 5 UTP; two pairs

RJ-45 connector

Up to 328 feet (100 meters) run length




2-port WAN MDA

DS3 44.736 Mbps

75 Ohm coaxial cable

BNC connector


E3 34.368 Mbps

75 Ohm coaxial cable

BNC connector


Ordering InformationTable 2: ATMSpeed Switch Modules Ordering Information.

Order Number Description

Centillion 50 and Centillion 100 Switches

AS1312001 ATMSpeed MDA MCP Module (32 MB DRAM, pre-loaded with Advanced Centillion Switching Software,accepts two 2-port MDA)

AS1304008 ATMSpeed MDA MCP Module (16 MB DRAM, accepts two 2-port MDA)

AS1304009 ATMSpeed MDA Switch Module (accepts two 2-port MDA)

AS1304010 ATMSpeed 622 Mbps MCP Module MMF (1-port SONET OC-12c)

AS1304011 ATMSpeed 622 Mbps MCP Module SMF (1-port SONET OC-12c)

AS1304012 ATMSpeed 622 Mbps Switch Module MMF (1-port SONET OC-12c)

AA0011008 16 MB DRAM upgrade for ATMSpeed MDA MCP Module, giving total 32 MB DRAM


Table 2: ATMSpeed Switch Modules Ordering Information (continued).

Order Number Description

System 5000BH Switch

CL1312001 Model 5720M ATM MDA MCP Module (32 MB DRAM, pre-loaded with Advanced Centillion Switching Software,accepts two 2-port MDA)

CL1304013 Model 5720 ATM MDA Switch Module (accepts two 2-port MDA)

CL1304014 Model 5720M ATM MDA MCP Module (16 MB DRAM, accepts two 2-port MDA)

CL1304015 Model 57622M-SM 622 Mbps ATM MCP Module SMF (1-port SONET OC-12c)

CL1304016 Model 57622M-MM 622 Mbps ATM MCP Module MMF (1-port SONET OC-12c)

CL1304017 Model 57622-MM 622 Mbps ATM Switch Module MMF (1-port SONET OC-12c)

Media Dependant Adapters for Centillion 50/100 and System 5000BH

CL1333001 2-port 155 Mbps SONET/SDH MMF ATM MDA

CL1333002 2-port 155 Mbps SONET/SDH UTP ATM MDA

CL1333003 2-port 155 Mbps SONET/SDH SMF ATM MDA

CL1333004 2-port 45 Mbps DS3 ATM MDA

CL1333005 2-port 34 Mbps E3 ATM MDA


ATM Asynchronous Transfer ModeAToM Asynchronous Transfer Mode

Management Information BaseBUS Broadcast and Unknown ServerCBR Constant Bit RateDRAM Dynamic Random

Access MemoryELAN Emulated LANESD Electrostatic DischargeFDDI Fiber Distributed Data

InterfaceHTTP HyperText Transport ProtocolIGMP Internet Group

Management ProtocolIISP Interim Interswitch

Signaling ProtocolIP Internet ProtocolIPX Internet Packet ExchangeLAN Local Area NetworkLANE LAN EmulationLEC LAN Emulation ClientLECS LAN Emulation

Configuration ServerLED Light Emitting DiodeLES LAN Emulation Server

MAN Metropolitan Area NetworkMCP Master Control ProcessorMDA Media Dependant AdapterMIB Management Information BaseMIPS Millions of Instructions

Per SecondMPC MPOA ClientMPE Multi-Protocol EngineMPOA Multi-Protocol Over ATMNNI Network-to-Network InterfaceNRZ Nonreturn to ZeroPNNI Private Network-to-Network

InterfacePVC Permanent Virtual ConnectionQoS Quality of ServiceRFC Request for CommentRISC Reduced Instruction

Set ComputerRMON Remote MonitoringSNMP Simple Network

Management ProtocolSVC Switched Virtual ConnectionUBR Unspecified Bit RateUNI User Network InterfaceUTP Unshielded Twisted PairVBR Variable Bit RateVLAN Virtual LANWAN Wide Area Network

Acronym Glossary

http://www.nortelnetworks.com

*Nortel Networks, the Nortel Networks logo, the Globemark, How the World Shares Ideas, Unified Networks, ATMSpeed,

Backbone Node, BN, CellManager, Centillion, EtherSpeed, Optivity, Optivity Campus, Optivity Enterprise, NETarchitect,

SpeedView, and TokenSpeed are trademarks of Nortel Networks. All other trademarks are the property of their owners.

Copyright © 1999 Nortel Networks. All rights reserved. Information in this document is subject to change without notice.

Nortel Networks assumes no responsibility for any errors that may appear in this document. Printed in USA.

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